Oil burner



NETED STATES PATENT OFFICE.

AUSTIN A. RILEY, OF INDIANAPOLIS, IND

IANA, ASSIGNOR OF TWO-THIRDS TO CEN- TRAL STATES BRIDGE COMPANY, OF INDIANAPOLIS, INDIANA, A CORPORATION OF INDIANA.

Application filed May 16,

To @ZZ 107mm. zi may concern.'

Be it known that l. ris'rIN RILEY, a citizen oit the -United States, residing at Indianapolis, in the county of Marion and State of Indiana, have invented new and useful Improvements in Oil Burners, ot which the following is a specification.

The object oic this invention is to provide an oil burner in which air to eiiect complete combustion is provided in quantities regulated to suit the supply of oil, and in a manner to thoroughly nebulize the oil in a chamber provided within the nozzle,l)e;tore discharge for ignition. f

A further object is to simplify and cheapen the cost oit construction, installation and maintenance of devices of this character, making same more durable and effective generally than devices ot this character.

I accomplish theabove, and other objects which will be hereinafter disclosed, by the mechanism illustrated in the accompanying drawing, in whichz i 'Figure l, is a longitudinal vertical section of my invention detached trom its appurtenances and in its simplest form, on the line 1-l, of Fig. 2, and Fig. 2 is a cross section of same on the line 2 2 of Fig. 1.

The body 3, and nozzle 4, are preferably one integral casting, with a chamber 5 and ample air-opening 6 thereto. The nozzle contains an atomizing chamber 7 having a reduced funnel-shaped discharge opening 8. The other side of the chamber 7 is open full to the chamber 5, subject to regulated closure by a valve 9, which is adapted to be seated in a valve-seat 10 formed at the junction of chambers 5 and 7, and to be removed therefrom in proportion to the size of valve-opening desired at any time.

The side of chamber 5 has a cylindrical opening which is normally closed by a plug 11, which makes a gas-tight fit therein, aided by a flange 12 on the outer end of the plug. lThe plug is retained by a set screw 13. The plug l1 is provided with a central screwthreaded opening to receive the threaded portion of the stem 15 of valve 9, and mounted on the end of the stem, outside of the plug, is a hand-wheel 14 by which the stem is screwed in and out through the plug 11 to regulate the distance of the valve away from its seat, or in other words, to regulate the size of the valve opening. A lock-nut 16 Specification of Letters Patent.

OIL BURNER.

Patented July 18, 1922.

1921. Serial N0. 469,755.

holds the wheel on the valve-Stem. The valve-stem 15 is hollow and the bore extends through the valve in the manner shown. Making a close sliding tit in said bore is a pipe 17, to the outer threaded end of which connection is made with a source of supply ot fuel oil (not shown). The inner end of this pipe terminates at the end of the valve when the valve is in its closed or seated position shown in the drawing. It discharges into a nozzle 20 having a reduced bore terminating with the nozzle near the outlet from nozzle 4. The opposite end 'of nozzle 20 makes a close sliding lit in the adjacent end of the gas pipe '17, and the wall of the nozzle 2O is thickened on its outside to form a shoulder against pipe 17 and also to provide suitable thickness of metal for the seats of set screws 22. The latter are four in number, equidistantly placed around nozzle 4, through threaded holes in which the set screws are adjusted to center the oil tip or nozzle 20. The nozzle 2O supports and centers the pipe 17 which pipe is the guide for the valve 9.

The operation of my invention is as itol lows: The device is installed with the nozzle 4 entering and discharging into the tire-box ot the furnace and with pipe 17 connected with an oil supply. lith the screws 22` loose to give free movement to nozzle 20, the valve 9 is irmly seated in seat 10 by turning hand wheel 14, and then the four set screws 22 are each screwed in firmly against the oil tip or nozzle 20, to hold the latter against further displacement. The nozzle 2O then serves to center the pipe 17,. which pipe 17 is the guide for the valve 9. Oil is supplied under pressure through pipe 17, controlled by the usual cut-ott' valve in the pipe (not shown), and the air-valve 9 is adjusted by turning the hand-wheel 14 to admit just the right amount of air to the nozzle 4 to thoroughly nebulize the oil supplied through oil tip 20', and to properly mix with the hydrocarbon element for the thorough combustion of the latter.

Having thus fully described my invention, what I claim as new and wish to secure by Letters Patent of the United States is z- 1. The combination, in an oil burner, of a. hollow body-portion having an air inlet, a nozzle extending from the body, a valveseat at the junction of the nozzle and body,

an oil supply pipe entering the body opposite the nozzle, an oil-tip nozzle in the first nozzle, means for centering it with the valveseat, said oil-tip nozzle supporting the oilsupply pipe centrally of the valve-seat, a valve cooperating with the valve-seat, said valve having a stem and the stem and. valve having an opening by which they are slidably mounted on the oil-supply pipe.

2. The combination, in an oil burner, ot a hollow body-portion having an air inlet. a nozzle extending at an angle from the body, a valve-seat atthe junction of the nozzle with the body, an opening into the hollow interior oi' the body opposite the nozzle. a plug normally closing said opening, said plug having a central hole, an oil-supply pipe entering the body through the hole in the plug, an oil-tip nozzle in the lirst nozzle supporting the inner end of the oil-supply pipe, adjustable means for supporting the oil-tip nozzle centrally of the valve-seat, a valve and stem havinga longitudinal opening by means oit' which they are slidably mounted on the oilsupply pipe so the valve willf cooperate ivithl the valve-seat, the stem of the valve extending outside ot the bodymember through the hole in the plug and said stem having threads screwingv into threads in the hole of the plug as means for adjusting the valve relative to the valveseat by rotating` the valve-stem, and manually operated means for rotating the valve stem.

3. The combination, in an oil burner, ot a hollow body-portion having an air inlet., a nozzle extending at an angle from the body said nozzle having a mixing chamber with a reduced outlet, a *alve-seat at the unction of the mixing chamber with the hollow interior ot' the body, said body having an opening diametrically opposite the nozzle` a plug normally closing the last opening said plug having a screw-threaded central hole,

an oil-tip nozzle in the mixing chamber of the rst nozzle, a plurality of set screws entering the nozzle radially and supporting the oil-tip nozzle and providing means for centering the latter relative to the valve seat and the reduced outlet of the first nozzle, an oil-supply pipe of considerably less diameter than the hole in the plug passing loosely through said hole and supported at its inner end on the oil-tip nozzle, a valve and valve-stein having a longitudinal opening through them by Which they are mounted with. a sliding lit on the oil-supply pipe, the valve-stem having screiv-tlneads engaging' with the threads of the plug` and manually operated means on the outer end ot the stein to rotate the stem and valve to regulate the position of the valve with relation to its seat.

4. The combination, ivith a valve-body having an air-inlet, a valve-seat and a nozzle outlet, ot an oil-supply pipe entering the body, said nozzle supporting the oil-supply pipe centrally ot' the valve seat, means for centering the nozzle With the valve seat, a falve slidably mounted on the oil-supply pipe, and means extending outside ot the body for adjusting the valve in its seat.

5. The Combination, With a valve-body having an air-inlet, a valve-seat and a nozzle outlet, or' an oil-supply pipe entering the body, said nozzle supporting the oil-supply pipe centrally of the valve seat.y means Jfor centering the nozzle with the valve seat, means Vevtending outside of the body for centering the inner end ot the pipe, a valve slidably mounted upon the oil supply pipe, and means extending outside ot' the body for adjusting the valve toward and from its seat to regulate the supply ot' air to the oil.

Signed at Indianapolis, Indiana, this 29th day oi AApril, 1921.

AUSTIN A. RILEY 

